parse static method

String parse(DateTime dateTime, { String? locale, String? pattern, })

parse formats provided dateTime to a formatted time like 'a minute ago'.

• If locale is passed will look for message for that locale.
• If pattern is passed will be used as the DateFormat pattern.

Implementation

static String parse(
  DateTime dateTime, {
  String? locale,
  String? pattern,
}) {
  final _locale = locale ?? _defaultLocale;
  final _message = _messageMap[_locale] ?? EnglishMessages();
  final _pattern = pattern ?? "dd MMM, yyyy hh:mm aa";
  final date = DateFormat(_pattern).format(dateTime);
  var _currentClock = DateTime.now();
  var elapsed =
      (_currentClock.millisecondsSinceEpoch - dateTime.millisecondsSinceEpoch)
          .abs();

  var _prefix = _message.prefixAgo();
  var _suffix = _message.suffixAgo();

  /// Getting [seconds], [minutes], [hours], [days] from
  /// provided [dateTime] by subtracting it from current [DateTime.now()].

  final num seconds = elapsed / 1000;
  final num minutes = seconds / 60;
  final num hours = minutes / 60;
  final num days = hours / 24;

  String msg;
  String result;

  /// If [elapsed] is less than 1 minute.
  if (seconds < 59) {
    msg = _message.secsAgo(seconds.round());
    result = [_prefix, msg, _suffix]
        .where((res) => res.isNotEmpty)
        .join(_message.wordSeparator());
  }

  /// If [elapsed] is less than 2 minutes and
  /// greater than 1 minute.
  else if (seconds < 119) {
    msg = _message.minAgo(minutes.round());
    result = [_prefix, msg, _suffix]
        .where((res) => res.isNotEmpty)
        .join(_message.wordSeparator());
  }

  /// If [elapsed] is less than 1 hour and
  /// greater than 2 minutes.
  else if (minutes < 59) {
    msg = _message.minsAgo(minutes.round());
    result = [_prefix, msg, _suffix]
        .where((res) => res.isNotEmpty)
        .join(_message.wordSeparator());
  }

  /// If [elapsed] is less than 2 hours and
  /// greater than 1 hour.
  else if (minutes < 119) {
    msg = _message.hourAgo(hours.round());
    result = [_prefix, msg, _suffix]
        .where((res) => res.isNotEmpty)
        .join(_message.wordSeparator());
  }

  /// If [elapsed] is less than 24 hours and
  /// greater than 2 hours.
  else if (hours < 24) {
    msg = _message.hoursAgo(hours.round());
    result = [_prefix, msg, _suffix]
        .where((res) => res.isNotEmpty)
        .join(_message.wordSeparator());
  }

  /// If [elapsed] is less than 2 days and
  /// greater than 24 hours.
  else if (hours < 48) {
    msg = _message.dayAgo(hours.round());
    result = [_prefix, msg, _suffix]
        .where((res) => res.isNotEmpty)
        .join(_message.wordSeparator());
  }

  /// If [elapsed] is less than 8 days and
  /// greater than 1 day.
  else if (days < 8) {
    msg = _message.daysAgo(days.round());
    result = [_prefix, msg, _suffix]
        .where((res) => res.isNotEmpty)
        .join(_message.wordSeparator());
  }

  /// If [elapsed] is greater than 8 days,
  /// a formatted [Date] will be returned.
  else {
    msg = date;
    result = date;
  }

  return result;
}